Friction-brake.



No. 707.232. Patented Aug. i9, I902.

h n. A. HOUSE, 1n. I

r'mcnon BRAKE. (Application 111 1! Feb. 25, 1962'. (No Model.)

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UNITED STATES HENRY ALONZO HOUSE, JR,

{PATE T FF cE.

OF HAMPSTEAD, ENGLAND,

FRICTION-BRAKE.

SPECIFICATION forming part of Letters Patent No.'707,232, dated August19,1902.

Application filed Fehruary 25, 1902. semi to. 95.596. (No model.)

To all whom it incl/y concern:

Be it known that I, HENRY ALONZO HOUSE,

J r., a citizen of the United States of America, residing at Hampstead,in the county of Middlesex, England, have invented certainnewand usefulImprovements in Friction-Brakes; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in:

the art to which it appertains to make and use the same.

This invention relates more especially to brakes for motor-cars andother vehicles, but is also more or less applicable to brakes used forother purposes.

7 In the accompanying drawings, Figure l is a vertical section of abrake apparatus constructed in accordance with my invention and appliedto the wheel of a motor-car, for example; and Fig. 2 is a Verticalsection on a. is a portion of the hub of the wheel of a motor-car orother vehicle, for example, and b is the axle thereof turning in thebearing a. Concentric with this axle b is a disk or frame (1, fixed tothe hub a and providedwith a peripheral flange forming a short hollow;cylinder e, the internal surface fof which-ispreferably turned true andconcentric with the axle b.

On the axle b and preferably inside the hollow cylinder e I secure acarriage or fixing 9. To a point in this carriage orfixing gintermediate between the center of the axle b and the internal peripheryof the hollow cylinder e-as'at h, for example-I pin-joint a seg-' mentalbrake-lever c'," which may be provided or not with any suitable numberof wooden or other brake-blocksj, adapted to bear, against the internalsurface fof the hollow cylinder 6, or the outer surface of the seg-jmental lever i may be adapted to bear'di-- rectly against the saidinternal surface fl To another point close to the first-named point h, Ipin-joint a second segmental brake? lever i, carrying brake-blocks j,similar in all respects to the first named, but adapted the carriage orfixing g about-diametrically vers it" are both pressed outward, so thatthey or the brake-blocks jj, fixed'to them, as the I casemay be, exertfrictional-pressure against the internal surface fof the hollow cylinder6, and when the operating-lever is moved in the direction of theplainarrow in Fig. 2 the segmental brake-levers i 11' are moved inwardaway from the internal surface f of the hollow cylinder e, so as towithdraw the brakesurfaces j j therefrom. This withdrawal of f thesegmental brake-levers'i t may be assisted, if desired, by means of oneor more springs p, for example.

Instead of the flanges on the disk or frame d being-so shaped as to forma hollow cylin= der ate they may be shaped to form the hollow frustum ofa cone or the hollow frustum of a sphere, orthey may beshaped to formany other suitable hollow body.

The carriage or fixing g, carrying the seg- -mental-brake-levers it" andoperating-lever m, may be secured to the axle b by any suitable means;but I have found it convenient to partly split it, as shown at q, andclamp it to the axle b by one or more clamping-screws '1'. There maybeinterposed between the carriage or fixing g andthe axle b one ormoremetallic liners or brushes s, provided with feathers t to prevent thecarriage or fixing gturning jonxthe axle b and to facilitate the puttingof the same into its proper position on the said axle.

I prefer to protect the working parts of the above-described brake whichare contained within the hollow cylinder e by closing the open end ofsuch cylinder by means of a mud and dust guard, which may consist of acoverplateu, made in halves and connected to the carriage or fixing g byscrews or bolts 22.

When it is desired to apply brake apparatus of the kind above describedto purposes other than motor-cars and vehiclesas, for instance, tocranes and the like-the construction and arrangement of the parts mustof course be modified according to circumstances.

Brake apparatus of the kind above described acts equally well whatevermay be the direction of rotation of the braking-surface.

I claim In combination, a cylinder 6, a fixing secured to the axle andextending above and below the said axle, a pair of brake-levers pivotedto the lower end of the fixing and extending thence upwardly and inproximity to the inner face of the cylinder, an operatinglever pivotedto the upper end of the fixing, links connecting the operating-leverabove and below its pivot with the free ends of the brake-levers and aspring between the free ends of the brake-levers, substantially asdescribed.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

HENRY ALONZO HOUSE, JUNIOR. Witnesses:

ROBERT FORRESTER BoRTHWIoK, STEPHEN EDWARD GRANGER.

